monazite
English Thesaurus
1. a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium (noun.substance)
| hypernym | : | mineral, |
| definition | : | solid homogeneous inorganic substances occurring in nature having a definite chemical composition (noun.substance) |
| substance holonym | : | atomic number 58, ce, cerium, |
| definition | : | a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group (noun.substance) |
| substance holonym | : | atomic number 63, eu, europium, |
| definition | : | a bivalent and trivalent metallic element of the rare earth group (noun.substance) |
| substance holonym | : | atomic number 60, nd, neodymium, |
| definition | : | a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium (noun.substance) |
| substance holonym | : | atomic number 59, pr, praseodymium, |
| definition | : | a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process (noun.substance) |
| substance holonym | : | atomic number 62, samarium, sm, |
| definition | : | a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite (noun.substance) |
| substance holonym | : | atomic number 65, tb, terbium, |
| definition | : | a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite (noun.substance) |
| substance holonym | : | atomic number 90, th, thorium, |
| definition | : | a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands (noun.substance) |
| substance holonym | : | atomic number 69, thulium, tm, |
| definition | : | a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime (noun.substance) |
| substance holonym | : | atomic number 70, yb, ytterbium, |
| definition | : | a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime (noun.substance) |
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